51323029 has 2 divisors, whose sum is σ = 51323030. Its totient is φ = 51323028.

The previous prime is 51322993. The next prime is 51323071. The reversal of 51323029 is 92032315.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49702500 + 1620529 = 7050^2 + 1273^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51323029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51322994 and 51323012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51323089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25661514 + 25661515.

It is an arithmetic number, because the mean of its divisors is an integer number (25661515).

Almost surely, 2^51323029 is an apocalyptic number.

It is an amenable number.

51323029 is a deficient number, since it is larger than the sum of its proper divisors (1).

51323029 is an equidigital number, since it uses as much as digits as its factorization.

51323029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 51323029 is about 7164.0092825177. The cubic root of 51323029 is about 371.6242906725.

The spelling of 51323029 in words is "fifty-one million, three hundred twenty-three thousand, twenty-nine".